The average weight of 40 students in a class is 52 kg. The average weight of the boys is 56 kg and that of the girls is 46 kg. How many girls are in the class?

1. A Option A: 18
2. B Option B: 20
3. C Option C: 24
4. D Option D: 16

Answer checked 11 October 2026 · How we write and check questions